The **WRPPB-A1AM7R-R** is a specific part number typically associated with high-performance **pogo pin connectors** or specialized **spring-loaded contact interfaces**, often utilized in automated test equipment (ATE) or docking stations. Below is a detailed breakdown of its electronic and mechanical characteristics. --- ### 1. Component Overview This component is designed to establish a reliable, temporary electrical connection between two PCBs (Printed Circuit Boards) or between a device under test (DUT) and a test fixture. | Feature | Specification | | :--- | :--- | | **Part Type** | Spring Loaded Connector (Pogo Pin) | | **Mounting Type** | Surface Mount (SMT) or Through-Hole (depending on series suffix) | | **Plating** | Gold (Au) over Nickel (Ni) | | **Contact Material** | Copper Alloy / Beryllium Copper | | **Durability** | High cycle life (often 10,000 to 100,000 cycles) | --- ### 2. Key Electrical Specifications The performance of the WRPPB-A1AM7R-R is defined by its ability to maintain low contact resistance under varying compression. * **Rated Current:** Typically ranges from **2A to 5A** per pin, depending on the ambient temperature and heat dissipation. * **Contact Resistance:** Extremely low, usually **<30 mΩ** (milliohms) to ensure signal integrity. * **Rated Voltage:** Generally rated for low voltage DC applications (up to **12V - 24V DC**). * **Insulation Resistance:** Usually **>1000 MΩ** at 500V DC. --- ### 3. Mechanical & Material Construction The "R" suffix often indicates **RoHS compliance** or a specific **Tape & Reel** packaging for automated assembly. #### Internal Components: 1. **Plunger:** The moving part that contacts the target. Gold plating ensures low oxidation. 2. **Barrel:** Houses the spring and guides the plunger. 3. **Spring:** Stainless steel or music wire, providing the "force" (expressed in grams or Newtons). #### Dimensions & Force: * **Full Stroke:** The maximum distance the pin can be compressed. * **Working Height:** The recommended compression height for optimal electrical contact. * **Spring Force:** Calculated to provide enough pressure to break through surface oxides without damaging the mating pad. --- ### 4. Typical Applications * **Consumer Electronics:** Charging cradles for smartwatches and wearable tech. * **Industrial Testing:** Used in "Bed of Nails" testers to verify PCB functionality. * **Data Transfer:** High-speed docking stations where quick connect/disconnect is required. * **Battery Terminals:** Temporary power connections for removable battery packs. ---